dun vs hound

dun

verb
  • To harass by continually repeating e.g. a request. 

  • To ask or beset a debtor for payment. 

adj
  • Of a brownish grey colour. 

noun
  • A collector of debts, especially one who is insistent and demanding. 

  • A fly made to resemble the mayfly subimago. 

  • A newly hatched, immature mayfly; a mayfly subimago. 

  • An ancient or medieval fortification; especially a hill-fort in Scotland or Ireland. 

  • A mound or small hill. 

  • A brownish grey colour. 

  • An urgent request or demand of payment. 

  • A structure in the Orkney or Shetland islands or in Scotland consisting of a roundhouse surrounded by a circular wall; a broch. 

intj
  • Imitating a deep bass note, such as that found in suspenseful music. 

hound

verb
  • To persistently harass. 

  • To urge on against; to set (dogs) upon in hunting. 

noun
  • A dog, particularly a breed with a good sense of smell developed for hunting other animals. 

  • Someone who seeks something. 

  • A houndfish. 

  • Any canine animal. 

  • A despicable person. 

  • A side bar used to strengthen portions of the running gear of a vehicle. 

  • Projections at the masthead or foremast, serving as a support for the trestletrees and top to rest on; foretop 

  • A male who constantly seeks the company of desirable women. 

How often have the words dun and hound occurred in a corpus of books? (source: Google Ngram Viewer )